Stephen Davies is an award-winning British children's author. He lived in Burkina Faso from 2001 to 2014, experiences that inspired many of his stories, and now resides in Battersea, London. Stephen is the author of the Hilda tie-in novels based on the popular animated series, as well as numerous picture books, the Sophie adventure series set on the edge of the Sahara Desert, and works for young adult readers.

Kalina Muhova is a Bulgarian illustrator based in Bologna, Italy, where she studied at the Academy of Fine Arts. She is a founding member of the artists' collective Brace. Her work includes Sofia dell'Oceano, a graphic novel written by Marco Nucci that won the Bartoli Award at the ARF Festival in Rome, and Diana sottosopra, published by Canicola.